/Engine/Plugins/Experimental/Water/Source/Runtime/Public/WaterBodyTypes.h
Struct holding wave computation result :
struct FWaveInfo
float
AttenuationFactor
Factor between 0 and 1 to dampen the waves (e.g. near the shore, based on a mask, etc.)
float
Height
Current wave amplitude at this location (includes AttenuationFactor dampening)
float
MaxHeight
Maximum wave amplitude at this location (includes AttenuationFactor dampening)
FVector
Normal
Current wave normal at this location (includes AttenuationFactor dampening)
float
ReferenceTime
Time that has been used in the wave computation